docs: def get_period_last_week() -> str:
      """ Returns the last week as a period string """
      today = Datum()
      today.start_of_day()
      # start_date = today - timedelta(days=7)
      start_date = today.clone()
      start_date.subtract_days(7)
  
      period = get_period(start_date.value, today.value)
      return period